-85.75% is the change from 863 to 123
Calculation steps:
[( 123 - 863 ) ÷ 863] x 100 = -85.75%
Formula
Percentage change = [(123 - 863) / 863] x 100
Subtract the new number by the original number
123 - 863 = -740
-740 ÷ 863 = -0.8574739281575898
-0.8574739281575898 x 100 = -85.75%